X20 system modules • Temperature modules • X20ATC402
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X20 system User's Manual 3.10
4.31.8.9.8 Temperature measurement
The received temperature data is prepared in two different formats and given a time stamp. For each channel there
are two separate registers for transmitting the measurement values to the PLC. The user is free to select the format
that best fits the application at hand.
4.31.8.9.8.1 TemperatureEvaluated, Measurand
Designations (pChannelName):
TemperatureEvaluated01
TemperatureEvaluated[02…06]
TemperatureEvaluated01_CANIO
TemperatureEvaluated[02…06]_CANIO
Measurand01
Measurand[02...06]
Analog input value with respect to sensor type:
Input signal
Digital value
Type J (Fe-CuNi)
-2100 to 12000 (for -210.0 to 1200.0°C)
Type K (NiCr-Ni)
-2700 to 13720 (for -270.0 to 1372.0°C)
Type N (NiCrSi-NiSi)
-2700 to 12980 (for -270.0 to 1298.0°C)
Type S (PtRh10-Pt)
-500 to 17680 (for -50.0 to 1768.0°C)
Type R (PtRh13-Pt)
-500 to 17600 (for -50.0 to 1760.0°C)
Type C (WRe5-WRe26)
0 to 23100 (for 0 to 2310.0°C)
Type T (Cu-CuNi)
-2700 to 4000 (for -270.0 to 400.0°C)
Type B (PtRh30-PtRh6)
0 to 18200 (for 0 to 1820.0°C)
Type E (NiCr-CuNi)
-2700 to 9970 (for -270.0 to 997.0°C)
Voltage without linearization and terminal temperature compensation
Resolution 1.0625 µV for a measurement range of ±35 mV
-32768 to 32767
Voltage without linearization and terminal temperature compensation
Resolution 2.125 µV for a measurement range of ±70 mV
-32768 to 32767
The following should be taken into consideration to ensure that the user always has a defined output value:
•
Up to the first conversion, 0x8000 is output.
•
After switching the sensor type, 0x8000 is output until the first conversion.
•
If the input is switched off, 0x8000 is output.
•
If an I/O supply voltage failure occurs, 0x8000 is output
4.31.8.9.8.2 SampleTime
Names (pChannelName):
SampleTime01_16bit
SampleTime[02…06]_16bit
SampleTime01_32bit
SampleTime[02…06]_32bit
The registers return the timestamp for when the module reads the current channel mapping. The values are pro-
vided as signed 2-byte or 4-byte values.
Data type
Values [µs]
INT
-32768...32767: Nettime timestamp of the current input value
DINT
-2,147,483,648...2,147,483,647: Nettime timestamp of the current input value